Probing the M_xray - M_weaklens Relation for Shear-Selected Galaxy Clusters

Details Probing the M_xray - M_weaklens Relation for Shear-Selected Galaxy Clusters Probing the M_xray - M_weaklens Relation for Shear-Selected Galaxy Clusters

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xmm..prop...46s&link_type=abstract

XMM-Newton Proposal ID #04011701

Physics

Groups Of Galaxies, Clusters Of Galaxies, Supercluster, A781, Xmm-Newton Proposal 04011701

Scientific paper

For the first time we have a sample of galaxy clusters of significant size (> 20 clusters) selected on the basis of their weak lensing shear through the Deep Lens Survey (DLS). We have obtained an initial look at our highest shear ranked cluster, A781, and 3 surrounding clusters with XMM-Newton and Chandra, and from this obtained temperature estimates but were unable to constrain their masses. We request deeper XMM and Chandra observations to obtain better mass estimates to 1.) understand the robustness of weak lensing masses and the biases inherent in shear-selected cluster samples, 2.) determine whether M_xray/M_weaklens is a universal diagnostic of cluster dynamical state, and 3.) characterize one of our clusters which has an x-ray but no shear signal.

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